Latest changes from Rust RocksDB binding merged

* Alias keyethereum to empty for libraries/npm

* Alias long-standing vertx warning to empty

* Alias secp256k1

* remove package-lock.json (not active atm)

* Set process.browser

* Empty fs module (keyethereum dep)

* !==

* Ethereum Classic Monetary Policy

Create a new parameter `ecip1017EraRounds`. When the block number
passes one era rounds, the reward is reduced by 20%.

See https://github.com/ethereumproject/ECIPs/blob/master/ECIPs/ECIP-1017.md

* Update rewards for uncle miners for ECIP1017

In the monetary policy, the rewards are changed from "up to 7/8 of the
reward" to "1/32 of the reward".

* Fix an off-by-one error in ECIP1017 era calculation

According to
https://github.com/ethereumproject/ECIPs/blob/master/ECIPs/ECIP-1017.md,
when in block number 5,000,000, it should still be in Era 1 (which in
our code `era == 0`). So we need to check whether the `rem` equals to
zero and act accordingly when calculating the era.

* `ecip1017_era_rounds` missing from EthashParams when run in build bot

* strip out ecip1017_eras_block_reward function and add unit test

Fixed account selection for Dapps on public node

blacklist bad snapshot manifest hashes upon failure

Fix wrongly called timeouts

ArchiveDB and other small fixes

convert try!() to ?

* ethstore-cli and ethkey-cli are workspace projects

* evmbin is now a workspace project

minor optimizations of the modexp builtin

three small commits for HashDB and MemoryDB

use rust 1.18's retain to boost the purge performance

snap update

Allow IPFS server to accept POST requests

Dutch i18n from #5802 for master

Typos in token deploy dapp ui

A CLI flag to allow fast transaction signing when account is unlocked.